The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 18, 2009
Filed:
Feb. 04, 2005
Hau Hwang, San Diego, CA (US);
King-chung Lai, San Diego, CA (US);
Ananthapadmanabhan Kandhadai, San Diego, CA (US);
Hau Hwang, San Diego, CA (US);
King-Chung Lai, San Diego, CA (US);
Ananthapadmanabhan Kandhadai, San Diego, CA (US);
Other;
Abstract
A color interpolation method uses a first interpolation function (F) to obtain a first missing color sub-pixel value for a pixel of interest and uses a second interpolation function (F) to obtain a second missing color sub-pixel value for the pixel of interest. First metric (V) indicative of an edge extending in a first direction (D) is obtained. Second metric (H) indicative of an edge extending in a second direction (D) is obtained. The two metrics are used to generate first and second weighting factors (k, k). A confidence factor value can be used to place more emphasis on one metric versus the other metric in the determination of the weighting factors. In one embodiment, the sub-pixel value being interpolated is the weighted sum of the first weighting factor multiplied by the first missing color sub-pixel value plus the second weighting factor multiplied by the second missing color sub-pixel value.